OpenTechnical

OT-2026-000005667

Publication integrity record

Bellows cup vacuum gripper, four zone face, per zone isolation, ejector fed, pressure verified

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000005667) never changes.

Identity and time

Publication numberOT-2026-000005667 · never reused
Internal UUID01a0a940-c702-7c0c-9342-96da43791c0d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:06:29.893206Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005667
StatusPUBLIC

Content hashes

Canonical text24e97431d8157ef52d54fb58974435e25b984f4303d481408ce78219c9f5c4b6
Markdown026895546512ef79fabfc6b057f21831d11e2864ee7db9d4cc2889488b46c480
PDF
Publication pagea87b2b1361cc9be5c06044d85d5defd6f8b09afb44f1f071653402dbedae937e
Manifest7917636cd0256491ac7fa68b715be1b1e7db37b88b9823749f6acf3ce0f16627

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureUlkS4JCjTGW3lgDg/wkP2M8RO3YfylahlkhHxKnsNAjkFkzrW7dFquU9ptsA4pLgVLC0+VPkUIWbA7BWW0Q3BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:14.175065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005667
observed a87b2b1361cc9be5c06044d85d5defd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:14.160503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005667/manifest.json
observed 7917636cd0256491ac7fa68b715be1b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:14.147285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005667/publication.md
observed 026895546512ef79fabfc6b057f21831...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:14.131761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005667/publication.txt
observed 24e97431d8157ef52d54fb58974435e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.